Singer 645 - Page 6

U
1.Take-up
2.
Pressure
Control
3.
Top
Thread
Guides
4.
Stitch
Pattern
Selector
5. Stretch
Stitch
Control
6. Stretch
Stitch
Pattern
Marking
7.
Stitch
Width
Control
8.
Bobbin
Winder
9. Hand
Wheel
10.
Stitch
Length
Control
11.
Reverse
Push
Button
12.
Feed
Dog
Height
Control
13.
Needle
Plate
14.
Presser
Foot
15. Feed
Dog
16.
Slide
Plate
17.
Thumb
Screw
18.
Check
Spring
19.
Light
Switch
20.
Face
Plate
21.
Tension
Dial
22.
Needle
Clamp
23. Spool
Pins
24.
Buttonhole
Reverse
Stitch
Tuner
25.
Bobbin
Winder
Tension
Disc
26.
Presser
Foot
Lever
27.
Thread
Cutter
28.
Head
Hinge
Holes
29.
Clutch-nut
Allways
at
its
highest
position
when
beginning
or
end
ing
sewing.
For
regulating
the
pressure
on
fabric.
For
leading
thread
to
Tension
Control
for
sewing.
For
selecting
the
stitch
pattern
and
buttonholing
steps.
For
changing
ordinary
stitch
to triple
back-and
forth
stitch
(stretch
stitch>.
Cross
reference
by
color
between
ordinary
stitch
patterns
and
stretch
stitch
patterns
performed
with
stretch
stitch
control
at “STRETCH
STITCH”.
For
setting
stitch
width.
For
winding
thread
on
bobbin.
For
the
control
of
the
up
and
.down
movement
of
the
;needle.
-
For
selecting
stitch
length
between
no
feeding
and
max
to
about
6
stitches
per
inch
For
easy
back-tacking
to
lock
thread
ends
by pushing
the
button.
For
regulating
feed
dog
height
for
various
materials
and
types
of
sewing.
With
guide
lines
for
sewing
accuracy.
-
For
holding
fabric
when
sewing.
Diamond
point
to
move
fabric
accurately.
For
opening
an access
to
bobbin
and
bobbin
case.
For
tightening
presser
foot
in
place
on
presser
bar.
-
For
automatic
precise
adjustment
of
flow
of
upper
thread.
For
turning
on
or
off
the light
inside
face
cover.
Hinge-open
type
for
replacement
of
light
bulb
and
oiling.
For
regulating
the
amount
of
tension
on
upper
thread.
For
holding
needle
in
place
in
the
slot
of
needle
bar.
For
holding
spools,
preventing
over-spin
of
spools.
For
adjustment
for
the
buttonhole
reverse
stitch
density.
For
providing
proper
tension
on
thread
when
bobbin
winding.
For
lifting
or
lowering
presser
bar
and
presser
foot.
For
convenience
to
cut
both
upper
and
lower
threads
after
sewing.
For
installation
of
machine
head
onto
portable
case
or
cabinet.
For
the
releasing
movement
of the
needle
bar
in
order
to wind
bobbin.
5